Question

okay umm....how do i do this arithmetic sequence

find the sum:
pi/3 + 2pi/3 + pi + 4pi/3 +...+13pi/3

how do i do this? im so lost

Answer 1

ignore the \(\pi\) and add
\[\frac{1}{3}+\frac{2}{3}+\frac{3}{3}+...\] or better yet add
\[1+2+3+...+13\] and the multiply the result by \(\frac{\pi}{3}\)

Answer 2

okay let me try it

Answer 3

haha im so lost hold on

Answer 4

91pi/3 ? @satellite73

Answer 5

lets see

Answer 6

yup you got it

Answer 7

coool :) now i got another problem on a diff proble m :?